CRCHI First made-in-China Compound Tunnel Boring Machine for Super Steep Urban Rail Transit Project Was Launched Successfully.
http://en.crchi.com/art/2023/7/20/art_40592_4605514.html
World's Largest Diameter Vertical Tunnel Boring Machine for shaft boring
Made in China by CRCHI.
http://en.crchi.com/art/2023/6/16/art_40592_4586039.html
Komatsu Hard Rock Mining Tunnel Boring Machine.
image copyright Komatsu. Used in relation to press release https://www.komatsu.jp/en/newsroom/2022/20220708